A semiconductor device includes a semiconductor section formed from an organic semiconductor material, a first contact for injecting charge carriers into the semiconductor section and a second contact for extracting charge carriers from the semiconductor section, wherein a layer of a nitrile or of an isonitrile is arranged between the first contact and the semiconductor section and/or between the second contact and the semiconductor section. The nitrile or isonitrile acts as a charge transfer molecule facilitating the transfer of charge carriers between contact and organic semiconductor material. This allows the contact resistance between contact and organic semiconductor material to be significantly reduced.